mercurial/bdiff.h

mdiff: let unidiff return (diffheader, hunks)

This will be used to make it possible to filter diff hunks based on this range
information.

Now unidiff returns a 'hunks' generator that yield tuple (hunkrange,
hunklines) coming from _unidiff() with 'newline at end of file' processing.

#ifndef _HG_BDIFF_H_
#define _HG_BDIFF_H_

struct bdiff_line {
	int hash, n, e;
	ssize_t len;
	const char *l;
};

struct bdiff_hunk;
struct bdiff_hunk {
	int a1, a2, b1, b2;
	struct bdiff_hunk *next;
};

int bdiff_splitlines(const char *a, ssize_t len, struct bdiff_line **lr);
int bdiff_diff(struct bdiff_line *a, int an, struct bdiff_line *b, int bn,
	struct bdiff_hunk *base);
void bdiff_freehunks(struct bdiff_hunk *l);

#endif